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Cheap flights from Barcelona to Seattle from $339

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Barcelona to Seattle departing on 11/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap round-trip flights

Scandinavian Airlines Logo
10:25 am - 2:00 pmBCN-SEA
36h 35m1 stop
Scandinavian Airlines Logo
4:20 pm - 6:10 pmSEA-BCN
16h 50m1 stop
$564Scandinavian Airlines
Find Deal
Thu, Oct 2 - Fri, Oct 17
Scandinavian Airlines Logo
10:25 am - 2:00 pmBCN-SEA
36h 35m1 stop
Scandinavian Airlines Logo
4:20 pm - 8:50 amSEA-BCN
31h 30m1 stop
$567Scandinavian Airlines
Find Deal
Thu, Oct 2 - Fri, Oct 17
Logo
9:20 pm - 2:00 pmBCN-SEA
25h 40m2 stops
Logo
4:20 pm - 8:40 amSEA-BCN
31h 20m3 stops
$627
Find Deal
Thu, Oct 2 - Fri, Oct 17
Logo
9:20 pm - 2:00 pmBCN-SEA
25h 40m2 stops
Logo
4:20 pm - 8:40 amSEA-BCN
31h 20m3 stops
$633
Find Deal
Thu, Oct 2 - Fri, Oct 17
Icelandair Logo
3:45 pm - 8:40 pmBCN-SEA
13h 55m1 stop
Icelandair Logo
3:45 pm - 2:45 pmSEA-BCN
14h 00m1 stop
$689Icelandair
Find Deal
Wed, Oct 15 - Thu, Oct 23
Icelandair Logo
3:45 pm - 11:25 amBCN-SEA
28h 40m1 stop
Icelandair Logo
3:45 pm - 2:45 pmSEA-BCN
14h 00m1 stop
$726Icelandair
Find Deal
Mon, Sep 1 - Tue, Sep 30
British Airways Logo
10:40 am - 11:11 pmBCN-SEA
21h 31m1 stop
British Airways Logo
1:25 pm - 11:20 amSEA-BCN
12h 55m1 stop
$730British Airways
Find Deal
Tue, Jan 13 - Tue, Feb 17
British Airways Logo
10:40 am - 7:03 pmBCN-SEA
17h 23m1 stop
British Airways Logo
6:50 pm - 7:45 pmSEA-BCN
15h 55m1 stop
$732British Airways
Find Deal
Tue, Jan 13 - Tue, Feb 17
Air Canada Logo
6:50 am - 7:16 pmBCN-SEA
21h 26m2 stops
Air Canada Logo
8:00 pm - 9:35 amSEA-BCN
28h 35m2 stops
$754Air Canada
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Wed, Dec 17 - Sun, Jan 11
Air Canada Logo
1:15 pm - 9:21 amBCN-SEA
29h 06m2 stops
Air Canada Logo
10:00 am - 2:05 pmSEA-BCN
19h 05m2 stops
$767Air Canada
Find Deal
Thu, Oct 2 - Fri, Oct 17

Scandinavian Airlines flights from Barcelona to Seattle

Our best Scandinavian Airlines deals on Barcelona to Seattle flight tickets
Scandinavian Airlines
Oct 2
BCN10:25 amBarcelona-El Prat
36h 35m
1 stop
SEA2:00 pmSeattle/Tacoma Intl
Oct 17
SEA4:20 pmSeattle/Tacoma Intl
16h 50m
1 stop
BCN6:10 pmBarcelona-El Prat
$564
Find similar
Scandinavian Airlines
Oct 2
BCN10:25 amBarcelona-El Prat
36h 35m
1 stop
SEA2:00 pmSeattle/Tacoma Intl
Oct 17
SEA4:20 pmSeattle/Tacoma Intl
31h 30m
1 stop
BCN8:50 amBarcelona-El Prat
$567
Find similar
Scandinavian Airlines
Oct 2
BCN10:25 amBarcelona-El Prat
36h 35m
1 stop
SEA2:00 pmSeattle/Tacoma Intl
Oct 17
SEA4:20 pmSeattle/Tacoma Intl
31h 30m
1 stop
BCN8:50 amBarcelona-El Prat
$581
Find similar

Icelandair flights from Barcelona to Seattle

Our best Icelandair deals on Barcelona to Seattle flight tickets
Icelandair
Oct 15
BCN3:45 pmBarcelona-El Prat
13h 55m
1 stop
SEA8:40 pmSeattle/Tacoma Intl
Oct 23
SEA3:45 pmSeattle/Tacoma Intl
14h 00m
1 stop
BCN2:45 pmBarcelona-El Prat
$689
Find similar
Icelandair
Sep 1
BCN3:45 pmBarcelona-El Prat
28h 40m
1 stop
SEA11:25 amSeattle/Tacoma Intl
Sep 30
SEA3:45 pmSeattle/Tacoma Intl
14h 00m
1 stop
BCN2:45 pmBarcelona-El Prat
$726
Find similar
Icelandair
Sep 1
BCN3:45 pmBarcelona-El Prat
28h 40m
1 stop
SEA11:25 amSeattle/Tacoma Intl
Sep 30
SEA3:45 pmSeattle/Tacoma Intl
14h 00m
1 stop
BCN2:45 pmBarcelona-El Prat
$728
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Barcelona to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated August 21, 2025.
Use the filters below to find and compare flights from Barcelona to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Thu 10/2

10:25 am-2:00 pm

1 stop36h 35m

Seattle/Tacoma Intl

Fri 10/17

4:20 pm-6:10 pm

1 stop16h 50m

$564

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Thu 10/2

10:25 am-2:00 pm

1 stop36h 35m

Seattle/Tacoma Intl

Fri 10/17

4:20 pm-8:50 am

1 stop31h 30m

$567

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Thu 10/2

9:20 pm-2:00 pm

2 stops25h 40m

Seattle/Tacoma Intl

Fri 10/17

4:20 pm-8:40 am

3 stops31h 20m

$627

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Thu 10/2

9:20 pm-2:00 pm

2 stops25h 40m

Seattle/Tacoma Intl

Fri 10/17

4:20 pm-8:40 am

3 stops31h 20m

$633

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Wed 10/15

3:45 pm-8:40 pm

1 stop13h 55m

Seattle/Tacoma Intl

Thu 10/23

3:45 pm-2:45 pm

1 stop14h 00m

$689

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Mon 9/1

3:45 pm-11:25 am

1 stop28h 40m

Seattle/Tacoma Intl

Tue 9/30

3:45 pm-2:45 pm

1 stop14h 00m

$726

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Tue 1/13

10:40 am-11:11 pm

1 stop21h 31m

Seattle/Tacoma Intl

Tue 2/17

1:25 pm-11:20 am

1 stop12h 55m

$730

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Tue 1/13

10:40 am-7:03 pm

1 stop17h 23m

Seattle/Tacoma Intl

Tue 2/17

6:50 pm-7:45 pm

1 stop15h 55m

$732

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Wed 12/17

6:50 am-7:16 pm

2 stops21h 26m

Seattle/Tacoma Intl

Sun 1/11

8:00 pm-9:35 am

2 stops28h 35m

$754

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Thu 10/2

1:15 pm-9:21 am

2 stops29h 06m

Seattle/Tacoma Intl

Fri 10/17

10:00 am-2:05 pm

2 stops19h 05m

$767

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Seattle from

How to get the cheapest flight ticket from Barcelona to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Seattle?

In general, March is the cheapest month to fly from Barcelona to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $708. If you don’t want to visit Seattle in March, then you should wait until May to fly from Barcelona, when ticket prices are also cheap, with an average price of $746.

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from Barcelona is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $784. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Barcelona because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,377.

What is the cheapest time of day to depart on your flight to Seattle?

Flying to Seattle from Barcelona in the morning is the least expensive time of day to depart. momondo users have found prices as low as $877 when looking at flights departing in the morning. Flights to Seattle are more costly at noon, with an average ticket price of $1,226. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Barcelona to Seattle/Tacoma Intl flight route?

Fly from Barcelona-El Prat to Seattle/Tacoma Intl for the best Barcelona - Seattle/Tacoma Intl flight prices

How far in advance should I book a flight to Seattle?

You are more likely to see cheaper flights to Seattle from Barcelona when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $875 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Barcelona for as low as $761 on momondo.

What cabin class options are available on Barcelona to Seattle/Tacoma Intl flights?

There are 1 cabin classes available to choose from on Barcelona to Seattle/Tacoma Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap Barcelona to Seattle flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Barcelona to Seattle

Direct flights

None
There are no direct flights from Barcelona to Seattle. There are no popular flight routes from Barcelona to Seattle.
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  • How far is Barcelona to Seattle/Tacoma Intl by plane?

    The straight-line distance from Barcelona to Seattle/Tacoma Intl is 5410.7 mi. In terms of flight time, this usually takes a little over 13h 55m.

  • When did momondo last update prices for flights from Barcelona to Seattle/Tacoma Intl Airport?

    Prices for flights from Barcelona to Seattle/Tacoma Intl Airport were last updated today.

  • How many operators does momondo search for flights from Barcelona to Seattle/Tacoma Intl Airport?

  • How old do you have to be to fly from Barcelona to Seattle/Tacoma Intl Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Barcelona to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The required travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Barcelona to Seattle

Compare and see reviews for airlines that fly from Barcelona to Seattle with momondo
Airline
Rating
Free Cancellation
Price
KLMPriceFrom $677Free CancellationRating
7.8
1,388 reviews
Search KLM flights
DeltaPriceFrom $686Free CancellationRating
7.9
7,981 reviews
Search Delta flights
British AirwaysPriceFrom $768Free CancellationRating
6.7
7,291 reviews
Search British Airways flights

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Leavenworth
Tacoma
SeaTac
Ocean Shores
Olympia
Renton
Kent
Lynnwood
Federal Way
Marysville
Puyallup
Tukwila
Kirkland
Lakewood
Centralia
Cle Elum
Shoreline
Fife
Redmond
Westport

Why use momondo?

Why should I use momondo to find a flight deal from Barcelona to Seattle?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Barcelona to Seattle for you.

Can I find flights from Barcelona to Seattle with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Seattle from Barcelona with this policy.

How can momondo help me find flights from Barcelona to Seattle?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Barcelona to Seattle.

I’m not ready to book a flight from Barcelona to Seattle right now. Can momondo alert me if prices change?

Price alerts on flights to Seattle from Barcelona are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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